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Claude Sonnet 4.6 vs GLM-5.2

Claude Sonnet 4.6 leads in 3 of 8 categories

Arena ELO

Claude Sonnet 4.6

Cheaper

GLM-5.2

Faster

Claude Sonnet 4.6

Detailed Comparison

CategoryClaude Sonnet 4.6GLM-5.2
ProviderAnthropic Z.ai
Context Window1M WIN128K
Input Price ($/1M)$2 $1.4 WIN
Output Price ($/1M)$12 $4.4 WIN
Arena ELO1440 WINN/A
Coding79.6% SWE-bench N/A
Reasoning72.5% OSWorld N/A
Speed (tokens/sec)~80 t/s WINN/A
Open SourceNo Yes

Frequently Asked Questions

Which is cheaper, Claude Sonnet 4.6 or GLM-5.2?

GLM-5.2 is approximately 59% cheaper than Claude Sonnet 4.6 per million tokens.

Which is better for coding, Claude Sonnet 4.6 or GLM-5.2?

Claude Sonnet 4.6 scores 79.6% SWE-bench on coding benchmarks, while GLM-5.2 scores N/A.

Which has a larger context window?

Claude Sonnet 4.6 supports 1M context, while GLM-5.2 supports 128K.

Is Claude Sonnet 4.6 or GLM-5.2 open source?

Claude Sonnet 4.6 is proprietary. GLM-5.2 is open source.

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